Across
- 4. complex substance from amino acids
- 5. pH of more than 7
- 8. DNA
- 12. sugar molecules
- 13. substance on which an enzyme acts
- 15. any of the class of sugars
- 17. regulates the rate of chemical reactions
- 18. macromolecules found in all cells
- 20. molecules that combine to form proteins
- 22. composed of DNA
- 23. energy for a reaction to occur
Down
- 1. organic compounds that are fatty acids
- 2. constant pH
- 3. undergoes change during a reaction
- 4. very large molecules
- 6. a carbohydrate
- 7. linking two consecutive amino acids
- 9. compound that does not have carbon
- 10. glucose
- 11. rearrangement of the molecular or ionic structure
- 14. increases the rate of a chemical reaction
- 16. large class of chemical compounds
- 19. pH of less than 7
- 21. formed from a chemical reaction
